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Code Issues Releases Wiki Activity

Fixes to split operator, plus instructions for using it to do search and replace

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This commit is contained in:
Jeremy Ruston
2019-06-21 10:21:52 +01:00
parent 90684f9f52
commit 6582b106ee
3 changed files with 66 additions and 6 deletions
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core/modules/filters/strings.js
+14 -6
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@@ -39,13 +39,17 @@ exports.trim = makeStringBinaryOperator(
);
exports.split = makeStringBinaryOperator(
function(a,b) {return ("" + a).split(b).filter(function(str) {return !!str;});}
function(a,b) {return ("" + a).split(b);}
);
exports.join = makeStringReducingOperator(
function(accumulator,value,operand) {
return "" + (accumulator ? accumulator + (operand || "") + value : value);
}
if(accumulator === null) {
return value;
} else {
return accumulator + operand + value;
}
},null
);
function makeStringBinaryOperator(fnCalc) {
@@ -59,7 +63,6 @@ function makeStringBinaryOperator(fnCalc) {
}
function makeStringReducingOperator(fnCalc,initialValue) {
initialValue = initialValue || "";
return function(source,operator,options) {
var result = [];
source(function(tiddler,title) {
@@ -75,10 +78,15 @@ exports.splitregexp = function(source,operator,options) {
var result = [],
suffix = operator.suffix || "",
flags = (suffix.indexOf("m") !== -1 ? "m" : "") + (suffix.indexOf("i") !== -1 ? "i" : ""),
regExp = new RegExp(operator.operand || "",flags);
regExp;
try {
regExp = new RegExp(operator.operand || "",flags);
} catch(ex) {
return ["RegExp error: " + ex];
}
source(function(tiddler,title) {
Array.prototype.push.apply(result,title.split(regExp));
});
});
return result;
};